MRI is applicable to any part of the human body for examination and also for the diagnosis of many diseases in the human body. Depending on the location, the indications are as follows: 1. cranial brain: such as congenital abnormal cranial development, hydrocephalus, cerebral atrophy, cerebral infarction, cerebral hemorrhage, traumatic brain injury, etc.; 2. eye and orbital area: orbital anterior lesions, extraocular muscle lesions, optic nerve and its sheath lesions, etc.; 3. nasopharynx: benign and malignant lesions of the nasopharynx, benign and malignant tumors of the larynx, etc.; 4. pituitary thin layer: endocrine disorders, pituitary adenomas, etc.; 5. liver, gallbladder, pancreas and spleen 6. Gastrointestinal tract: esophageal lesions, gastric lesions, small intestine lesions, colon lesions, etc.; 7. Pelvis: bladder, ureter, prostate, uterus, ovaries and adnexal lesions, pelvis and pelvic organ injuries, etc.; 8. Kidney: renal mass, renal tuberculosis, renal trauma, etc.; 9. Adrenal gland: adrenal cortical tumor, pheochromocytoma, metastatic tumor, adrenal hemorrhage, adrenal 10, peritoneal cavity and retroperitoneal space: primary tumor in peritoneal cavity and retroperitoneal space, retroperitoneal fibrosis, aneurysm, venous embolism, etc.; 11, spine: tumor in spinal canal, spinal cord injury, herniated disc, spinal stenosis, etc.; 12, bone, joint and muscle: bone and joint trauma, rheumatoid arthritis, ankylosing spondylitis, muscle soft tissue tumor, etc.